We have a Whirlpool furnace and the A/C isn't working. The motor seems like it wants to turn on but only clicks. We replaced the air filter that was pretty dirty and broke the ice off the outside copper pipe that was frozen because of this. We waited an hour and turned it back on but it still doesn't work. The model # is FXB43150D and the serial number is H33720846. I cannot find a reset switch. Any help?